/* 
 * Coded by David Bruno Cortarello <Nomius>. Redistribute under the terms of
 * the BSD-lite license. Bugs, suggests, nor projects: dcortarello@gmail.com.
 *
 * Program: Limshsql
 * Version: 2.0
 *
 *
 * Copyright (c) 2011, David B. Cortarello
 * All rights reserved.
 *
 * Redistribution and use in source and binary forms, with or without
 * modification, are permitted provided that the following conditions are met:
 *
 *   * Redistributions of source code must retain the above copyright notice
 *     and the following disclaimer.
 *   * Redistributions in binary form must reproduce the above copyright notice
 *     and the following disclaimer in the documentation and/or other materials
 *     provided with the distribution.
 *   * Neither the name of Kwort nor the names of its contributors may be used
 *     to endorse or promote products derived from this software without
 *     specific prior written permission.
 *
 * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS"
 * AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
 * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
 * ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT HOLDERS OR CONTRIBUTORS BE
 * LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR
 * CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF
 * SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS
 * INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN
 * CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)
 * ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
 * POSSIBILITY OF SUCH DAMAGE.
 */

#include <stdio.h>
#include <stdlib.h>
#include <string.h>

char **dstrtok(const char *str, char token)
{
	register int i;
	int j = 0, init;
	char **ret = NULL;

	for (i = init = 0; *(str+i); i++) {
		if (*(str+i) == token) {
			/* Match token, make space for it and copy it */
			ret = realloc(ret, sizeof(char *) * (j+1));
			ret[j] = calloc(i-init+1, sizeof(char));
			memcpy(ret[j++], str+init, i-init);
			init = ++i;
		}
	}

	/* We copy the last part, or in case no token were found all the string.
	 * We make space also for the NULL pointer */
	ret = realloc(ret, sizeof(char *) * (j+2));
	ret[j] = calloc(i-init+1, sizeof(char));
	memcpy(ret[j++], str+init, i-init);

	/* Let's put a NULL as tokenizer ender */
	ret[j] = NULL;

	return ret;
}

void freetok(char **tstr)
{
	register int i;

	for (i = 0; tstr[i] != NULL; i++)
		free(tstr[i]);
	free(tstr);
}
